Question: If any nation has a nuclear bomb, don't they also need a delivery system to hit the US, like a smart rocket, with a smart guidance system? Don't they really have to know what they are doing? I know the Russia has this technology, and the US and I'm sure Israel, but does N. Korea, India, Pakistan and Iran have this technology? I mean, if they don't know what they are doing, they could fire a rocket with a nuclear warhead up in the air and it may come back and hit them. They would have to drop the bomb from a plane, but a plane would get shut down way before it gets near its target. Just curious.